Railway construction.



P. DUN WALD RAiLWAY CONSTRUCTION. APPLICATION FILED APR. 6, 19Q3.

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- PATENTED JUNE 16, 1903.

I UN TED STATE Patented June 1c, 1903,

PATENT OFFIen.

'PETER DUNWALD, on E10, NEW YORK, nsslenoa on ONE-HALF To Jenn e. GARTELMAN, OF NEW YORK v.

RAI uwAY, N ST RUCTi 0N.

SPECIFICATION forming part o f Letters Patent as 731,292, dated' June 16, 1903.

I Application filed.April 6, 1 903 Serial No. 151,292. (No model.) i

To all whom it mag concern.-

Be it known that I, PETER DUNWALD, a citizen of the United States, and a resident of Rio, in the county of Orange and State of New York, have invented a new and Improved" Railway Construction, of which the following is a full, clear, and exact description,

The invention relates to passenger trans-- portation; and-its object is to-provide a new no and improved-railway construction which is simple and durable and more especially designed for conveniently and quickly transporting persons up and down streets in cities and other places.

I 5 Theinvention consists of novel features and parts and combinations of the same, 'aswi'll' parts of the platforms being removed. Fig.

7 2 is aside elevation of the improvement. Fig. 3 is a transverse section of the'same. Fig'. 4 isan enlarged side elevationof the flexible connection between adjacent sections of the platforn1-supporting rails. Fig. 5 is a 'sectional' plan view of the same on the line 5 5 of Fig. 4, and Fig. 6 i'san enlarged perspective view of part of the wheel-frame and its rack.

'On the track-rails A A of an endless track are mounted to travel grooved track-wheels- B- B, arranged in pairs, each pair being secured on an-axle C, journaledin suitable bearings carried by a skeleton link D, and the several .links'ofthe device are pivotally connected with each other at their outer members D to form an endless link-frame,and to this link-frame a traveling motion is given to cause all the wheelsB B to travel simultaneously on the endless track-rails A A.

For the purpose mentioned the outer. members D of thelinks D are provided at their lower edges with rack-bars E, forming a continuous rack in mesh with a gear-wheel F, (see Figs. 2 and 3,) secured on a shaft F, connected with suitable machinery for imparting a rotary motion to the said shaft F a'ndits I gear-wheel F, so'that the latter imparts'a traveling motion to. the rack'bars E and the. endless link-frame to cause the wheels B'B' to travel on the track-lrails'A A; For arailway construction of considerable length adesired number of such gear-wheels and driven shafts F and F'fa reemployed.

On each axle C between the track-wheels B and B are secured a plurality of wheels G G 5 ot' dilferent diameters to form with the innermost track-wheel B the platform-supporting wheels, and each of the'said'platform-wheels is provided withspaced annular groovesengage'd at the tops of thewheel's by platform supporting rails HH, each supportinig aplatform I, appearingin step form, of which the lowermost is-adjaoent to a fixed platform J, from which the passengerspass onto the platforms-andfrom the same when arriving at 7,053

theirldestinations. The uppermost platform I is preferably provided near its outer edge with-a railing I. I I

' The platform-suporting rail II is preferably in the form of a continuous strip or band, 7 5

while the other rail H 'is inade in sections, and the ends of adjacent sections are connected with each other .by a sleeve H (see Figs. 4 and. 5,) so as to render therail continuous, and a springH in each sleeve presses on the ends of the sections to prevent undue noise when the rail passes around a curve, as indicated in the top of Figsl. Eachsection ot-the rail H is rigidly connected at or nearits middle by a cross-arm H} with the other rail H,jthe cross-arm being preferably in the shape of a' cross, as indicated in Fig. 1; but any other desired shape may be given to the cross 'arm. t

Now when the shaft' F is rotated and-a 9o traveling motion is given to the link-frame carrying the, wheels B B and G G then the wheels '13 B in traveling along on the rails A A cause rotation of their axles C, so that the wheels G G rotate with the wheels B B. Now as the platforms I are supported by the platform-rails II II on the several wheels B,

G, and G it is evident that a traveling motion is given to the said platforms atadifierent rate of speed that is, the platform sup-v 19o '1' AVLE COPY remiss-2a I trav els at higher speed than the platform on the wheel G.

Now a person desiring to travel from one point of the route to aeother steps fromv thefiXGd platform J at a station onto the plat form I of the first Wheel 1 5, anti thereby tram els with this platform. anti acquires the latters speed so to enable the person to readiiy step next signer platform I over the Wheels G- and. from there finally onto the fast-traveling platform I. Now when the per-' son arrives near the riestination While travcling on the uppermost platform I it is necessary for the person to first step back onto the next lower platform and finally onto the lowspeed platform 1', from which. the person can finally alight on the fixed platform 3 at destination, 7

The device is very simple and durable in we ra so constructed for cities and r a man er that one sicl'e FL; is While the other xyes down the 1 i est, or one side of the railway con-- strnction may gosp one street and; the other sifie down another street, acccr ing conditions.

Tilairing thus described my invention, 1 claim as new and olesire to secure by Letters fratent 1,; A railway construction comprieingan track, traclzz-vtlieels traveling on the track and. carrying on their rules a plurality of stepped Wheels, an endless link-frame in which the wheeiaiwrles are jonrnaieil, the linkframe oer vingan endless rack a gear-"wheel tree, to cause me lraclnwheels to travelalong the track, and platforms mpportctl from the wheels 'ortln :2 1%.. ailway co earlier track anal carrying o of Ste l wheel t c form an em mil one of the peripheral.

i less link-trams in trhior 'e iei1rnaleai, an ra same, to cause the traoicrfneels t travel ales the track, platformsnpporting ails engagthe said grooves at the top of the platrsspperting rrh the sai o traveling on the a plura ity ed wheels, latter and. one of the tracrewlieels having" each a pair of spaceri uau rein the said. wheel the trnstion, not lialsle to easily'get out oi to iooal said link-frazne, a gear wheel in mesh with the rack, tor driving the same, to'canse the track-wheels to travel along the track, a pair of connected platform -supporting' rails for each platform-wheel, engaging the grooves thereofiand platforms snpporteri on the said platfcrrwsupporting,1'ails, as set forth.

A railway. construction comprising an endless track, track-wl1eels traveling on the, track az-ini carrying on their axles a plurality of stepped wheels, the latter and one of the track-wheels having each a pair of spaced asnnlsr peripheral grooves, an endless linkframe in which the said track-Wheel sides are jonrnaled, an endless rack carried by the said linkframe, gear-Wheelin mesh-witli the rack, for driving the same, to cause the track-wheels to travel alongthe track, a pair of connected platform-supporting rails for each PlSIfQIlIbWlISSl, engagingthe grooves" thereof, and platforms supported on the said platformsupporting rails, one of the rails of pairor. platforrnrails being oontinuonsand other made in sections; having sliding connection with each other, as set forth.

A railway oonstruotion comprising an endless traclqtraclr-Wheels traveling on the tract: on their axles a plurality .of stepped Wheels, the latter and one of the the other made in sect-ions, having sliding connection with each other, and a spring for each sliding connection, as set forth.

6. A railway construction comprising an entllcss 3322811, pairs of track-rails, wheels i to travel on the said track, links .ny connected with each other to form rame each link having bearings for m ..1.r of wheels to turn in and in k having a portion formed into a rack, heels secured on the axle between the sairi. track-mil wheels a revolnble gearwlneel in mesh with the said rack, pairs of enrlless platform-"ails, one pair for each wheel, and platforms held on the said platterm-rails, as set forth.

in testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

PETER DUNVVALD.

itnessesfl THEO. G. Hos-rite, EVEEARD BOLTON MARSHALL. 

